US20160155920A1 - Thermoelectric generator system of engine - Google Patents
Thermoelectric generator system of engine Download PDFInfo
- Publication number
- US20160155920A1 US20160155920A1 US14/664,812 US201514664812A US2016155920A1 US 20160155920 A1 US20160155920 A1 US 20160155920A1 US 201514664812 A US201514664812 A US 201514664812A US 2016155920 A1 US2016155920 A1 US 2016155920A1
- Authority
- US
- United States
- Prior art keywords
- heat
- thermoelectric generator
- protective cover
- generator system
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 42
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 7
- 239000002918 waste heat Substances 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- H01L35/30—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/181—Circuits; Control arrangements or methods
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
Definitions
- the present disclosure relates to a thermoelectric generator system of an engine, and more particularly, to a thermoelectric generator system of an engine that improves fuel efficiency of an internal combustion engine by generating electricity using high temperature waste heat generated from the engine.
- thermoelectric generator technology for a vehicle is a technology that improves fuel efficiency by generating electricity using a thermoelectric element mounted within high temperature heat source parts of a vehicle such as an exhaust system and an engine part along with a cooling system to move electrons based on temperature gradient.
- the existing thermoelectric generator system for a vehicle performs thermoelectric generation by mounting a thermoelectric generator module within an exhaust pipe.
- thermoelectric generator module a technology of mounting the thermoelectric generator module within a circular pipe of the exhaust pipe in a form in which the thermoelectric generator module wraps the exhaust pipe.
- thermoelectric generator module when the thermoelectric generator module is mounted within the existing circular pipe in a form in which the thermoelectric generator module wraps the exhaust pipe, there is a limitation of using highest temperature waste heat generated from the engine part and the planar thermoelectric generator module may not be easily mounted in the curved circular pipe.
- a temperature region of the exhaust pipe is defined, only thermoelectric generator module meeting the temperature region may be used and therefore there is a limitation of power improvement.
- thermoelectric generator system of an engine that improves fuel efficiency of an internal combustion engine by generating electricity using high temperature waste heat generated from the engine.
- thermoelectric generator system of an engine may include: an insulating heat protective cover mounted within an engine; and a unit disposed at an upper end of the heat protective cover to uniformly distribute heat energy.
- the unit may include: a heat spreader that may be disposed at a lower portion and include a hot heat spreader and a cold heat spreader; a thermoelectric generator module disposed an upper portion of the heat spreader to perform thermoelectric generation; and a cooling jacket disposed at an upper portion of the thermoelectric generator module to perform cooling.
- the heat protective cover may include a graphite sheet provided on a flat aluminum surface to conduct heat and absorb radiant heat.
- the unit may be configured by sequentially stacking the hot heat spreader, the graphite sheet, the thermoelectric generator module, the graphite sheet, the cold heat spreader, and the cooling jacket.
- the cooling jacket may be inserted with a U-type water cooling pipe.
- the heat protective cover may be fitted in an exhaust manifold of the engine, and the upper end of the heat protective cover may be configured to convert heat energy by convection/radiation or conduction based on a temperature and may include the unit to transfer heat energy by the conduction at a specific temperature or greater and transfer heat energy by the radiation or the convection at a temperature lower than the specific temperature.
- the heat protective cover may include a bypass apparatus configured to drive a generator system using heat energy radiated from the heat protective cover during initial starting to generate electricity and improve thermoelectric power by conduction.
- the bypass apparatus may include: a high heat conductive pillar having an internal structure configured of a heat pipe and to be movable; a cooling water disposed over the pillar; and a container configured to vertically move the pillar using high-pressure steam.
- the container may include: a first chamber in which condense water is accommodated; and a second chamber configured to be interlocked to the first chamber and have the pillar inserted thereinto.
- the thermoelectric generator module may be inserted between the hot heat spreader and the cold heat spreader which contact the pillar and the graphite sheet may be attached to each interface to minimize a heat transfer interface resistance.
- FIG. 1 is an exemplary diagram illustrating a thermoelectric generator system of an engine according to an exemplary embodiment of the present disclosure
- FIGS. 2A-2C are exemplary diagrams illustrating a heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure
- FIGS. 3A-3B exemplary diagrams illustrating a pillar of a bypass apparatus of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure
- FIG. 4 is an exemplary front view illustrating the bypass apparatus of the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure
- FIG. 5 is an exemplary side view illustrating the bypass apparatus of the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure.
- FIGS. 6 and 7 are exemplary diagrams illustrating a unit which is applied for the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure.
- vehicle or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- SUV sports utility vehicles
- plug-in hybrid electric vehicles e.g. fuels derived from resources other than petroleum
- exemplary embodiment is described as using a plurality of units to perform the exemplary process, it is understood that the exemplary processes may also be performed by one or plurality of modules.
- the term “about” is understood as within a range of normal tolerance in the art, for example within 2 standard deviations of the mean. “About” can be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise clear from the context, all numerical values provided herein are modified by the term “about.”
- thermoelectric generator system of an engine may include a heat protective cover 100 mounted within an engine 10 and a unit 200 mounted at the heat protective cover 100 .
- the heat protective cover 100 may be an insulating member mounted to protect a wiring from substantially high temperature of an exhaust manifold to mount a thermoelectric generator module using waste heat from the engine 10 within an engine part.
- the unit 200 may be mounted at an upper end of the heat protective cover 100 to uniformly distribute heat energy.
- the unit 200 may include a heat spreader 210 , a thermoelectric generator module 220 , and a cooling jacket 230 and may be fastened with the heat protective cover 100 to operate a generator system.
- the heat spreader 210 may be mounted at a lower portion of the unit 200 and may include a hot heat spreader 211 and a cold heat spreader 212 .
- the thermoelectric generator module 220 may be mounted at an upper portion of the heat spreader 210 to perform thermoelectric generation
- the cooling jacket 230 may be mounted over the thermoelectric generator module 220 to perform cooling.
- the heat protective cover 100 may have a graphite sheet provided on a flat aluminum surface to conduct heat and absorb radiant heat.
- the unit 200 may be configured by sequentially stacking the hot heat spreader 211 , the graphite sheet, the thermoelectric generator module 220 , the graphite sheet, the cold heat spreader 212 , and the cooling jacket 230 at an upper portion of the heat protective cover 100 .
- a U-type water cooling pipe may be inserted into the cooling jacket 230 .
- the graphite sheet may be inserted to minimize heat transfer resistance at an interface and absorb vibrations and the heat spreader 210 may be a thermoelectric element and a layer inserted to uniformly transfer heat to the thermoelectric element.
- the heat spreader 210 with the thermoelectric generator module 220 may be fastened together by being pressed by at least 200 psi to maximize heat transfer.
- a size of a lower hot heat spreader 211 may be designed to be greater than that of the cold heat spreader 212 to prevent temperature from being non-uniformly distributed due to cooling around an edge of the thermoelectric generator module 220 and to assure a fastening part with the heat protective cover 100 .
- a surface temperature of the heat protective cover 100 due to radiant heat from the exhaust manifold may be different based on operation conditions but generally may have a range from about 150 to 350° C. in an section of about 1500 to 4500 rpm.
- the heat protective cover 100 may be fitted within the exhaust manifold of the engine 10 , and the upper end of the heat protective cover 100 may be configured to convert heat energy by convection/radiation or conduction based on temperature.
- the upper end of the heat protective cover 100 may be mounted with the unit 200 to transfer heat energy by the conduction at a particular temperature or greater and transfer heat energy by the radiation or the convection at a temperature less than the particular temperature.
- the heat protective cover 100 and the unit 200 may be mounted within the engine 10 to use the heat energy radiated from the exhaust manifold.
- the heat protective cover 100 which may be configured to transfer heat energy by conduction to perform the thermoelectric generation may have a clamping structure in which focusing parts of an upper end and a lower end are separated from each other.
- the heat protective cover 100 may include a bypass apparatus 110 configured to drive a generator system using heat energy radiated from the heat protective cover 100 during the initial starting to generate electricity and improve thermoelectric power by conduction.
- the bypass apparatus 110 may include a high heat conductive pillar 111 having an internal structure configured of a heat pipe P, a cooling water 112 mounted over the pillar 111 , and a container 113 configured to vertically move the pillar 111 using high-pressure steam.
- the container 113 may include a first chamber 114 in which condense water w may be accommodated and a second chamber 115 interlocked to the first chamber 114 and into which the pillar 111 may be inserted.
- the container 113 may be made of high heat conductive metals such as aluminum and copper and an upper end and a lower end thereof may be formed in a substantially square shape to secure a heat contact area.
- the upper end of the container 113 may be maintained to have an area greater than that of a TE module to be contacted during the movement of the pillar 111 to uniformly supply heat energy over the entire area of the module.
- the thermoelectric generation may be generated by moving heat energy from the exhaust manifold of the engine 10 to the heat protective cover 100 by the conduction and radiating heat energy from a section of the upper end of the heat pipe P under the low temperature environment (e.g., less than a particular temperature) and the thermoelectric generation may be generated by forming high pressure steam at the boiling point (B.P.) or greater of a fluid in a lower container 113 under the high temperature environment and contacting a hot side of the thermoelectric generator module 220 by a pressure while supplying heat energy to the pillar 111 .
- B.P. boiling point
- the pillar 111 may be inserted with the heat pipe P to have high conductivity (about ⁇ 5000 W/mK), the heat energy may move at a rapid response speed, substantially high temperature and high pressure steam may increase to a predetermined height as illustrated in FIG. 5 and then may move to the first chamber 114 formed with a wall surface of a heat insulation material through a passage formed on a wall surface of the lower end of the pillar 111 and may be condensed therein, and the condensed fluid may move again to the lower container 113 through a channel formed under the first chamber 114 .
- a flow rate of the fluid requires a water level at which a high pressure may be maintained even at substantially low temperature and a separate clamping may be provided to increase surface sticking between the pillar 111 and the module (or hot spreader).
- thermoelectric generator module 220 may be inserted between the hot heat spreader 211 and the cold heat spreader 212 which contact the pillar 111 and the graphite sheet may be attached to each interface, thereby minimizing a heat transfer interface resistance.
- the unit 200 in which the cooling jacket 230 is attached to the cold heat spreader 212 may be configured to maintain a particularly spaced distance from the bypass apparatus 110 and then may be attached to the heat protective cover 100 .
- the fluid used in the container 113 water may be used but other fluids may also be applied in consideration of a conducted heat value and durability of the module.
- the thermoelectric generator system may include the insulating heat protective cover 100 mounted within the engine 10 and the unit 200 disposed at the upper end of the heat protective cover 100 to uniformly distribute the heat energy to use the heat protective cover 100 mounted at the upper end of the exhaust manifold of the engine 10 to protect the wiring from the exhaust heat, thereby absorbing heat energy discarded from the exhaust manifold to generate electricity, using the waste heat discarded from the exhaust manifold without affecting the catalyst to improve the fuel efficiency of the internal combustion engine, and transferring heat by conduction at a particular temperature or greater and transferring heat by radiation and convection at temperature less than the particular temperature to increase the efficiency.
Landscapes
- Exhaust Silencers (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
- This application is based on and claims the benefit of priority to Korean Patent Application No. 10-2014-0167587, filed on Nov. 27, 2014 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
- The present disclosure relates to a thermoelectric generator system of an engine, and more particularly, to a thermoelectric generator system of an engine that improves fuel efficiency of an internal combustion engine by generating electricity using high temperature waste heat generated from the engine.
- Generally, a thermoelectric generator technology for a vehicle is a technology that improves fuel efficiency by generating electricity using a thermoelectric element mounted within high temperature heat source parts of a vehicle such as an exhaust system and an engine part along with a cooling system to move electrons based on temperature gradient. The existing thermoelectric generator system for a vehicle performs thermoelectric generation by mounting a thermoelectric generator module within an exhaust pipe.
- Meanwhile, a technology of mounting the thermoelectric generator module within a circular pipe of the exhaust pipe in a form in which the thermoelectric generator module wraps the exhaust pipe has been developed. However, when the thermoelectric generator module is mounted within the existing circular pipe in a form in which the thermoelectric generator module wraps the exhaust pipe, there is a limitation of using highest temperature waste heat generated from the engine part and the planar thermoelectric generator module may not be easily mounted in the curved circular pipe. In addition, when a temperature region of the exhaust pipe is defined, only thermoelectric generator module meeting the temperature region may be used and therefore there is a limitation of power improvement.
- The present disclosure provides a thermoelectric generator system of an engine that improves fuel efficiency of an internal combustion engine by generating electricity using high temperature waste heat generated from the engine.
- According to an exemplary embodiment of the present disclosure, a thermoelectric generator system of an engine may include: an insulating heat protective cover mounted within an engine; and a unit disposed at an upper end of the heat protective cover to uniformly distribute heat energy.
- In particular, the unit may include: a heat spreader that may be disposed at a lower portion and include a hot heat spreader and a cold heat spreader; a thermoelectric generator module disposed an upper portion of the heat spreader to perform thermoelectric generation; and a cooling jacket disposed at an upper portion of the thermoelectric generator module to perform cooling.
- The heat protective cover may include a graphite sheet provided on a flat aluminum surface to conduct heat and absorb radiant heat. The unit may be configured by sequentially stacking the hot heat spreader, the graphite sheet, the thermoelectric generator module, the graphite sheet, the cold heat spreader, and the cooling jacket. The cooling jacket may be inserted with a U-type water cooling pipe.
- Further, the heat protective cover may be fitted in an exhaust manifold of the engine, and the upper end of the heat protective cover may be configured to convert heat energy by convection/radiation or conduction based on a temperature and may include the unit to transfer heat energy by the conduction at a specific temperature or greater and transfer heat energy by the radiation or the convection at a temperature lower than the specific temperature. The heat protective cover may include a bypass apparatus configured to drive a generator system using heat energy radiated from the heat protective cover during initial starting to generate electricity and improve thermoelectric power by conduction.
- The bypass apparatus may include: a high heat conductive pillar having an internal structure configured of a heat pipe and to be movable; a cooling water disposed over the pillar; and a container configured to vertically move the pillar using high-pressure steam. The container may include: a first chamber in which condense water is accommodated; and a second chamber configured to be interlocked to the first chamber and have the pillar inserted thereinto. In the unit module, the thermoelectric generator module may be inserted between the hot heat spreader and the cold heat spreader which contact the pillar and the graphite sheet may be attached to each interface to minimize a heat transfer interface resistance.
- The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings:
-
FIG. 1 is an exemplary diagram illustrating a thermoelectric generator system of an engine according to an exemplary embodiment of the present disclosure; -
FIGS. 2A-2C are exemplary diagrams illustrating a heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure; -
FIGS. 3A-3B exemplary diagrams illustrating a pillar of a bypass apparatus of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure; -
FIG. 4 is an exemplary front view illustrating the bypass apparatus of the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure; -
FIG. 5 is an exemplary side view illustrating the bypass apparatus of the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure; and -
FIGS. 6 and 7 are exemplary diagrams illustrating a unit which is applied for the heat protective cover of the thermoelectric generator system of an engine according to the exemplary embodiment of the present disclosure. - It is understood that the term “vehicle” or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
- Although exemplary embodiment is described as using a plurality of units to perform the exemplary process, it is understood that the exemplary processes may also be performed by one or plurality of modules.
- The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/of” includes any and all combinations of one or more of the associated listed items.
- Unless specifically stated or obvious from context, as used herein, the term “about” is understood as within a range of normal tolerance in the art, for example within 2 standard deviations of the mean. “About” can be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise clear from the context, all numerical values provided herein are modified by the term “about.”
- Exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. As illustrated in
FIGS. 1 to 7 , a thermoelectric generator system of an engine according to an exemplary embodiment of the present disclosure may include a heatprotective cover 100 mounted within anengine 10 and aunit 200 mounted at the heatprotective cover 100. - As illustrated in
FIGS. 1 and 2A-2C , the heatprotective cover 100 may be an insulating member mounted to protect a wiring from substantially high temperature of an exhaust manifold to mount a thermoelectric generator module using waste heat from theengine 10 within an engine part. As illustrated inFIG. 6 , theunit 200 may be mounted at an upper end of the heatprotective cover 100 to uniformly distribute heat energy. - In this configuration, the
unit 200 may include aheat spreader 210, athermoelectric generator module 220, and acooling jacket 230 and may be fastened with the heatprotective cover 100 to operate a generator system. Theheat spreader 210 may be mounted at a lower portion of theunit 200 and may include ahot heat spreader 211 and acold heat spreader 212. In addition, thethermoelectric generator module 220 may be mounted at an upper portion of theheat spreader 210 to perform thermoelectric generation, and thecooling jacket 230 may be mounted over thethermoelectric generator module 220 to perform cooling. - Meanwhile, the related art uses a cover configured of a two-fold aluminum layer to trap air and to improve heat insulation performance but the heat
protective cover 100 according to the exemplary embodiment of the present disclosure may have a graphite sheet provided on a flat aluminum surface to conduct heat and absorb radiant heat. In particular, theunit 200 may be configured by sequentially stacking thehot heat spreader 211, the graphite sheet, thethermoelectric generator module 220, the graphite sheet, thecold heat spreader 212, and thecooling jacket 230 at an upper portion of the heatprotective cover 100. In particular, a U-type water cooling pipe may be inserted into thecooling jacket 230. - Furthermore, the graphite sheet may be inserted to minimize heat transfer resistance at an interface and absorb vibrations and the
heat spreader 210 may be a thermoelectric element and a layer inserted to uniformly transfer heat to the thermoelectric element. In particular, theheat spreader 210 with thethermoelectric generator module 220 may be fastened together by being pressed by at least 200 psi to maximize heat transfer. - Further, according to the exemplary embodiment of the present disclosure, a size of a lower
hot heat spreader 211 may be designed to be greater than that of thecold heat spreader 212 to prevent temperature from being non-uniformly distributed due to cooling around an edge of thethermoelectric generator module 220 and to assure a fastening part with the heatprotective cover 100. A surface temperature of the heatprotective cover 100 due to radiant heat from the exhaust manifold may be different based on operation conditions but generally may have a range from about 150 to 350° C. in an section of about 1500 to 4500 rpm. - Meanwhile, according to the exemplary embodiment of the present disclosure, the heat
protective cover 100 may be fitted within the exhaust manifold of theengine 10, and the upper end of the heatprotective cover 100 may be configured to convert heat energy by convection/radiation or conduction based on temperature. The upper end of the heatprotective cover 100 may be mounted with theunit 200 to transfer heat energy by the conduction at a particular temperature or greater and transfer heat energy by the radiation or the convection at a temperature less than the particular temperature. - According to the exemplary embodiment of the present disclosure, as illustrated in
FIG. 1 , the heatprotective cover 100 and theunit 200 may be mounted within theengine 10 to use the heat energy radiated from the exhaust manifold. In particular, as illustrated inFIG. 2A-C , the heatprotective cover 100 which may be configured to transfer heat energy by conduction to perform the thermoelectric generation may have a clamping structure in which focusing parts of an upper end and a lower end are separated from each other. - Moreover, since the exhaust gas generated from the
engine 10 has a substantial effect on a catalyst activation temperature, heat should be prevented from moving to the thermoelectric generator system for about 1870 seconds (based on HP mode, phase I) required to generate initial radiation after the engine starts and a temperature of exhaust gas at an inlet of a catalytic stage should be maintained at about 450° C. or greater since the catalyst is initially activated and then the catalyst is oxidized to generate heat. Further, according to the exemplary embodiment of the present disclosure, the heatprotective cover 100 may include a bypass apparatus 110 configured to drive a generator system using heat energy radiated from the heatprotective cover 100 during the initial starting to generate electricity and improve thermoelectric power by conduction. - As illustrated in
FIGS. 3A-B to 5, the bypass apparatus 110 may include a high heatconductive pillar 111 having an internal structure configured of a heat pipe P, acooling water 112 mounted over thepillar 111, and acontainer 113 configured to vertically move thepillar 111 using high-pressure steam. In this configuration, thecontainer 113 may include afirst chamber 114 in which condense water w may be accommodated and a second chamber 115 interlocked to thefirst chamber 114 and into which thepillar 111 may be inserted. - Further, the
container 113 may be made of high heat conductive metals such as aluminum and copper and an upper end and a lower end thereof may be formed in a substantially square shape to secure a heat contact area. In particular, the upper end of thecontainer 113 may be maintained to have an area greater than that of a TE module to be contacted during the movement of thepillar 111 to uniformly supply heat energy over the entire area of the module. - Meanwhile, reviewing an order of the thermoelectric generation according to the exemplary embodiment of the present disclosure, the thermoelectric generation may be generated by moving heat energy from the exhaust manifold of the
engine 10 to the heatprotective cover 100 by the conduction and radiating heat energy from a section of the upper end of the heat pipe P under the low temperature environment (e.g., less than a particular temperature) and the thermoelectric generation may be generated by forming high pressure steam at the boiling point (B.P.) or greater of a fluid in alower container 113 under the high temperature environment and contacting a hot side of thethermoelectric generator module 220 by a pressure while supplying heat energy to thepillar 111. - Further, the
pillar 111 may be inserted with the heat pipe P to have high conductivity (about ˜5000 W/mK), the heat energy may move at a rapid response speed, substantially high temperature and high pressure steam may increase to a predetermined height as illustrated inFIG. 5 and then may move to thefirst chamber 114 formed with a wall surface of a heat insulation material through a passage formed on a wall surface of the lower end of thepillar 111 and may be condensed therein, and the condensed fluid may move again to thelower container 113 through a channel formed under thefirst chamber 114. In particular, a flow rate of the fluid requires a water level at which a high pressure may be maintained even at substantially low temperature and a separate clamping may be provided to increase surface sticking between thepillar 111 and the module (or hot spreader). - Moreover, in the unit module, the
thermoelectric generator module 220 may be inserted between thehot heat spreader 211 and thecold heat spreader 212 which contact thepillar 111 and the graphite sheet may be attached to each interface, thereby minimizing a heat transfer interface resistance. As illustrated inFIGS. 6 and 7 , theunit 200 in which thecooling jacket 230 is attached to thecold heat spreader 212 may be configured to maintain a particularly spaced distance from the bypass apparatus 110 and then may be attached to the heatprotective cover 100. Particularly, as the fluid used in thecontainer 113, water may be used but other fluids may also be applied in consideration of a conducted heat value and durability of the module. - Accordingly, according to the exemplary embodiment of the present disclosure, the thermoelectric generator system may include the insulating heat
protective cover 100 mounted within theengine 10 and theunit 200 disposed at the upper end of the heatprotective cover 100 to uniformly distribute the heat energy to use the heatprotective cover 100 mounted at the upper end of the exhaust manifold of theengine 10 to protect the wiring from the exhaust heat, thereby absorbing heat energy discarded from the exhaust manifold to generate electricity, using the waste heat discarded from the exhaust manifold without affecting the catalyst to improve the fuel efficiency of the internal combustion engine, and transferring heat by conduction at a particular temperature or greater and transferring heat by radiation and convection at temperature less than the particular temperature to increase the efficiency. - As described above, although the present disclosure has been described with reference to exemplary embodiments and the accompanying drawings, it would be appreciated by those skilled in the art that the present disclosure is not limited thereto but various modifications and alterations might be made without departing from the scope defined in the following claims.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0167587 | 2014-11-27 | ||
KR1020140167587A KR101673703B1 (en) | 2014-11-27 | 2014-11-27 | Thermoelectric generator system of engine |
Publications (2)
Publication Number | Publication Date |
---|---|
US20160155920A1 true US20160155920A1 (en) | 2016-06-02 |
US10388842B2 US10388842B2 (en) | 2019-08-20 |
Family
ID=55968311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/664,812 Active 2035-07-12 US10388842B2 (en) | 2014-11-27 | 2015-03-21 | Thermoelectric generator system of engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US10388842B2 (en) |
JP (1) | JP6553947B2 (en) |
KR (1) | KR101673703B1 (en) |
CN (1) | CN106194355B (en) |
DE (1) | DE102015205197B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO342455B1 (en) * | 2017-04-03 | 2018-05-22 | Tegma As | A device for generating electric power for installation to an exhaust conduit |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106870075A (en) * | 2016-12-31 | 2017-06-20 | 集美大学 | A kind of cogeneration system of utilization marine vehicle diesel residual heat |
JP6767928B2 (en) * | 2017-05-26 | 2020-10-14 | 株式会社Kelk | Thermoelectric transmitter |
TWI651875B (en) * | 2017-11-30 | 2019-02-21 | 恆怡能源科技股份有限公司 | Thermal power module for waste heat recovery |
JP2021093474A (en) * | 2019-12-12 | 2021-06-17 | いすゞ自動車株式会社 | Power generator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050172992A1 (en) * | 2004-02-05 | 2005-08-11 | Kouji Shimoji | Thermoelectric generator for internal combusion engine |
US20080042163A1 (en) * | 2004-06-30 | 2008-02-21 | General Electric Company, A New York Corporation | Thermal Transfer Device and System and Method Incorporating Same |
US20080314438A1 (en) * | 2007-06-20 | 2008-12-25 | Alan Anthuan Tran | Integrated concentrator photovoltaics and water heater |
US20090014053A1 (en) * | 2004-01-30 | 2009-01-15 | Detlef Schulz | Process for the energy conversion of solar radiation into electric power and heat with colour-selective interference filter reflectors and a concentrator solar collector with colour-selective reflectors as an appliance for applying this process |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05287426A (en) | 1992-04-16 | 1993-11-02 | Toyota Motor Corp | Heat resistant aluminum alloy and heat resistant aluminum alloy powder |
US6127619A (en) * | 1998-06-08 | 2000-10-03 | Ormet Corporation | Process for producing high performance thermoelectric modules |
JP2000328981A (en) | 1999-05-21 | 2000-11-28 | Toyota Motor Corp | Engine control unit |
DE60335035D1 (en) | 2002-12-26 | 2010-12-30 | Toyota Motor Co Ltd | EXHAUST SYSTEM |
JP2006266211A (en) * | 2005-03-25 | 2006-10-05 | Mazda Motor Corp | Exhaust heat power generation plant of internal combustion engine |
JP2008019674A (en) | 2006-07-14 | 2008-01-31 | Shin Caterpillar Mitsubishi Ltd | Energy recovery device and working machine |
KR100869322B1 (en) | 2007-10-01 | 2008-11-18 | 임석연 | Thermoelectric generation system for waste heat |
DE102008005334A1 (en) | 2008-01-21 | 2009-07-30 | Christian Vitek | Thermoelectric generator for exhaust gas stream, is attached at waste gas flue, and thermoelectric transducer element is arranged, which converts thermal energy into electricity |
JP2009278830A (en) * | 2008-05-16 | 2009-11-26 | Toyota Motor Corp | Thermoelectric generator |
KR101138526B1 (en) | 2009-06-30 | 2012-04-25 | 신상용 | Vehicle having thermoelectric generation system using waste heat |
CN102597441A (en) | 2009-10-14 | 2012-07-18 | 威斯卡特工业有限公司 | Fluid-cooled exhaust manifold |
DE102011004243B4 (en) | 2011-02-16 | 2015-02-19 | Eberspächer Exhaust Technology GmbH & Co. KG | exhaust manifold |
JP5664326B2 (en) | 2011-02-22 | 2015-02-04 | 富士通株式会社 | Thermoelectric conversion module |
JP5637020B2 (en) | 2011-03-11 | 2014-12-10 | 株式会社デンソー | Heat transfer device |
JP2012215112A (en) | 2011-03-31 | 2012-11-08 | Honda Motor Co Ltd | Engine |
JP5613099B2 (en) | 2011-04-20 | 2014-10-22 | 東海ゴム工業株式会社 | Sound insulation structure |
KR101340846B1 (en) | 2011-12-12 | 2013-12-12 | 현대자동차주식회사 | Thermoelectric generator of vehicle |
DE102012210627B4 (en) | 2012-06-22 | 2016-12-15 | Eberspächer Exhaust Technology GmbH & Co. KG | Thermoelectric module, heat exchanger, exhaust system and internal combustion engine |
JP5977117B2 (en) | 2012-08-28 | 2016-08-24 | 住友理工株式会社 | Vehicle soundproof cover |
JP5939138B2 (en) | 2012-11-19 | 2016-06-22 | トヨタ自動車株式会社 | Thermoelectric generator |
DE102014112532B4 (en) | 2014-09-01 | 2016-06-23 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Thermoelectric generator device and residual heat utilization device |
KR101664563B1 (en) | 2014-10-14 | 2016-10-10 | 현대자동차주식회사 | generator for internal combustion engine |
-
2014
- 2014-11-27 KR KR1020140167587A patent/KR101673703B1/en active IP Right Grant
-
2015
- 2015-03-21 US US14/664,812 patent/US10388842B2/en active Active
- 2015-03-23 DE DE102015205197.8A patent/DE102015205197B4/en active Active
- 2015-05-21 CN CN201510262637.2A patent/CN106194355B/en active Active
- 2015-05-25 JP JP2015105145A patent/JP6553947B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090014053A1 (en) * | 2004-01-30 | 2009-01-15 | Detlef Schulz | Process for the energy conversion of solar radiation into electric power and heat with colour-selective interference filter reflectors and a concentrator solar collector with colour-selective reflectors as an appliance for applying this process |
US20050172992A1 (en) * | 2004-02-05 | 2005-08-11 | Kouji Shimoji | Thermoelectric generator for internal combusion engine |
US20080042163A1 (en) * | 2004-06-30 | 2008-02-21 | General Electric Company, A New York Corporation | Thermal Transfer Device and System and Method Incorporating Same |
US20080314438A1 (en) * | 2007-06-20 | 2008-12-25 | Alan Anthuan Tran | Integrated concentrator photovoltaics and water heater |
Non-Patent Citations (1)
Title |
---|
"Stack." Merriam-Webster.com. Merriam-Webster, n.d. Web. 27 Mar. 2017. * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO342455B1 (en) * | 2017-04-03 | 2018-05-22 | Tegma As | A device for generating electric power for installation to an exhaust conduit |
NO20170547A1 (en) * | 2017-04-03 | 2018-05-22 | Tegma As | A device for generating electric power for installation to an exhaust conduit |
WO2018185087A1 (en) | 2017-04-03 | 2018-10-11 | Tegma As | An electric energy generating device |
US10858979B2 (en) | 2017-04-03 | 2020-12-08 | Tegma As | Electric energy generating device |
Also Published As
Publication number | Publication date |
---|---|
KR101673703B1 (en) | 2016-11-07 |
DE102015205197B4 (en) | 2023-09-21 |
CN106194355B (en) | 2019-05-17 |
KR20160063822A (en) | 2016-06-07 |
DE102015205197A1 (en) | 2016-06-02 |
JP6553947B2 (en) | 2019-07-31 |
JP2016102492A (en) | 2016-06-02 |
US10388842B2 (en) | 2019-08-20 |
CN106194355A (en) | 2016-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10388842B2 (en) | Thermoelectric generator system of engine | |
CN103502731B (en) | For the evaporator burner of portable heater | |
US9021795B2 (en) | Heat transfer device and manufacturing method | |
JP5864094B2 (en) | Exhaust system with thermoelectric generator | |
JP5804089B2 (en) | Thermoelectric generator | |
US9761781B2 (en) | Thermoelectric generator sleeve for a catalytic converter | |
US20120055527A1 (en) | Structural element for thermally shielding engines or engine components, in particular a heat shield for combustion engines | |
CN102213128A (en) | Internal combustion engine with thermoelectric generator | |
US20150128590A1 (en) | Thermoelectric generator insert for engine waste heat recovery | |
JP2013110825A (en) | Thermoelectric generator | |
JP5954103B2 (en) | Thermoelectric generator | |
US9810130B2 (en) | Generator for internal combustion engine | |
US20160133818A1 (en) | Thermoelectric generation structure for vehicle | |
US20160064636A1 (en) | Thermoelectric generation apparatus for vehicle | |
US20170155027A1 (en) | Thermoelectric generating system | |
KR101191076B1 (en) | An Apparatus for thermoelectric generator using exhaust gas | |
CN211230638U (en) | Vehicle engine waste heat utilization equipment | |
US9091192B2 (en) | Waste heat recovery system of vehicle | |
KR102527454B1 (en) | Apparatus for cooling converter and method for manufacturing the same | |
JP2007182130A (en) | On-vehicle fuel cell system | |
WO2015183219A1 (en) | Heating system of vehicle battery | |
CN105634334A (en) | Thermoelectric power generation apparatus | |
Lee | An experimental study on thermoelectric generator performance for waste coolant recovery systems in vehicles | |
US11777113B2 (en) | Waste heat reclamation in a power generation system and method of operating a power generation system | |
CN209523796U (en) | Heat energy recovery power generation device of internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KWAK, JIN WOO;LYO, IN WOONG;LEE, TAE WON;AND OTHERS;REEL/FRAME:035224/0065 Effective date: 20150310 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |